How do you evaluate #-\frac { 7} { 2} \times \frac { 2} { 7}#?

1 Answer
EZ as pi
Apr 20, 2017

#-1#

Explanation:

When you are multiplying fractions, if you cancel like factors first, there will be no simplification to be done at the end. This means that the numbers stay smaller and are therefore easier to work with.

#-cancel7^1/cancel2^1 xx cancel2^1/cancel7^1#

#-1#

Related questions
Impact of this question
527 views around the world
You can reuse this answer
Creative Commons License